400140364 has 12 divisors (see below), whose sum is σ = 754110784. Its totient is φ = 184680144.

The previous prime is 400140353. The next prime is 400140383. The reversal of 400140364 is 463041004.

It is a happy number.

It is a super-2 number, since 2×400140364² = 320224621804104992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3847452 + ... + 3847555.

Almost surely, 2^400140364 is an apocalyptic number.

It is an amenable number.

400140364 is a deficient number, since it is larger than the sum of its proper divisors (353970420).

400140364 is a wasteful number, since it uses less digits than its factorization.

400140364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7695024 (or 7695022 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 400140364 is about 20003.5087922094. The cubic root of 400140364 is about 736.8924738820.

Adding to 400140364 its reverse (463041004), we get a palindrome (863181368).

The spelling of 400140364 in words is "four hundred million, one hundred forty thousand, three hundred sixty-four".